Home / 640,119.54-960,437.50-284,890.58

Finding the Fourth Proportional to 640,119.54, 960,437.50 and 284,890.58

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Solution

The fourth proportional to 640,119.54, 960,437.50 and 284,890.58 is: 427,450.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,119.54 : 960,437.50 = 284,890.58 : x
  2. Step 2: Convert to fraction form
    640,119.54/960,437.50 = 284,890.58/x
  3. Step 3: Cross multiply
    640,119.54x = 960,437.50 × 284,890.58
  4. Step 4: Simplify right side
    640,119.54x = 273,619,596,428.75
  5. Step 5: Solve for x
    x = 273,619,596,428.75/640,119.54
  6. Step 6: Final answer
    x = 427,450.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.